Flowmaster Super 40 Series Delta Flow Mufflers

4.78 out of 5 stars 181 Customer Reviews

These Super 40 Flowmaster mufflers significantly outflow the older two-chamber mufflers. They help create even more horsepower with less interior noise and a deeper exterior sound. These mufflers feature a design patterned after Flowmaster's race mufflers. These Flowmaster mufflers far exceed older models on Dyno tests. They create a beautiful hot rod sound, along with increased horsepower and gas mileage. So, if you want to get that hot rod sound and add some horsepower, then these Flowmaster mufflers have you covered.

Results 1 - 23 of 23

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 953045

Muffler, Super 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-953045

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.5 Inch Muffler 952548

Muffler, Super 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-952548

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.5 Inch Muffler 952545

Muffler, Super 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-952545

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 953046

Muffler, Super 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-953046

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 953047

Muffler, Super 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-953047

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 3.5 Inch Muffler 853548

Muffler, Super 40 Series Delta Flow, Oval, Stainless, Black, 3.5 in. Offset Inlet/Outlet, Chevy, Ford, Ram

Part Number: FLO-853548

4.69 out of 5 stars ( 13 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 3 Inch Muffler 853046

Muffler, Super 40 Series, Oval, Stainless, Offset 3.0 in. Inlet, Center 3.0 in. Outlet, 13.5 in. Case Length

Part Number: FLO-853046

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.5 Inch Muffler 952546

Muffler, Super 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-952546

4.8 out of 5 stars ( 15 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 3 Inch Muffler 853048

Muffler, Super 40 Series, Oval, Stainless, Offset 3.0 in. Inlet/Outlet, 13.5 in. Case Length, Each

Part Number: FLO-853048

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 852548

Muffler, Super 40 Series, Oval, Stainless, Offset 2.5 in. Inlet/Outlet, 13.5 in. Case Length, Each

Part Number: FLO-852548

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 852546

Muffler, Super 40 Series, Oval, Stainless, Offset 2.5 in. Inlet, Center 2.5 in. Outlet, 13.5 in. Case Length

Part Number: FLO-852546

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 953048

Muffler, Super 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-953048

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.25 Inch Muffler 952446

Muffler, Super 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-952446

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 953049

Muffler, Delta Flow Super 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-953049

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.5 Inch Muffler 9525454

Muffler, Super 40 Series, Dual 2 1/2 in. Inlets/Dual 2 1/2 in. Outlets, Steel, Black, Each

Part Number: FLO-9525454

4.73 out of 5 stars ( 22 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.5 Inch Muffler 952547

Muffler, Super 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-952547

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 9530452

Muffler, Super 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-9530452

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.5 Inch Muffler 952549

Muffler, Super 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Same Side Offset, Steel, Black, Each

Part Number: FLO-952549

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 3 Inch Muffler 8530452

Muffler, Super 40 Series, Oval, Stainless, Single Center 3.0 in. Inlet, Dual Offset 2.5 in. Outlets, Each

Part Number: FLO-8530452

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 2.25 Inch Muffler 952445

Muffler, Super 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-952445

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 8525454

Muffler, Super 40 Series, Oval, Stainless, Dual Offset 2.5 in. Inlet/Outlet, 13.5 in. Case Length, Each

Part Number: FLO-8525454

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 40 Series Delta Flow Steel 3 Inch Muffler 9530462

Muffler, Super 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-9530462

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 23, 2025 if ordered today

...Loading

Estimated Ship Date: May 23, 2025 if ordered today

Flowmaster Super 40 Series Delta Flow Steel 2.25 Inch Muffler 952448

Muffler, Super 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-952448

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Page 1 of 1